Gearing



jam 1, 1924 T. H. MARS GEARING Filed Oct. 27 1921 2 Sheets-Sheet EL mwwJam 191% T. H. MARS GEARING Filed Oct. 2'7. 1921 2 shaets sheaz 2 10ings, and to letters of reference marked thereon,

Patented Jan. 1, 1924. I

;: sir re THOMAS I MARS, or CHICAGO, ILLINOIS, AssI'GNoR T0- FEDERAL mamFFEfiE.

ELECTRIC COMPANY,

Oil! CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS GEARING.

Application filed Gctober 27, 1921 Serial No. 510,828.

Illinois, have invented certain new and use-' ful Improvements inGearing; and I do hereby declare that the following is a full, clear,and exact description thereof, reference being had to the accompanyingdrawwhich form a part of this application. p

This invention relates to improvements in gearing and. consists of thematters hereinafter described and more particularly pointed out in theappended claims.

The object of the invention is to provide a simple-- andeflicientgearing, especially adapted for use as a speed reduction set, be-,

tween the driving motor of a domestic washof such a machine.

The advantages of the invention will more fully appear as I proceed withmy specificaon. y

In the drawings:

Figure 1 is a view in front elevation of a domestic washing machine ofthe cylinder type to which my improved gearing has been applied;

V Figure 2 is an enlarged detail view in elevation of the parts shown inthe middle of Figure 1 and which operate to impart an oscillatorymovement to the washing machine cylinder:

Figure 3 is a view in side elevation of the parts shown in, and asviewed from, the left hand side of Figure 2;

Figure 4 is a view inelevation on an enlarged scale of a box containingmy improved gearing, the cover plate being removed to more clearlyillustrate theinterior thereof;

Figure 5 is a vertical sectionalview taken on the line 5-5 of Figure 4;and

Figure 6 is a horizontal sectional View taken on the line 6-6 of Figure4.

Referring now in detail'to that embodiment of the invention illustratedin the accompanying drawings :10 indicates the main support for thegearing which as illustrated herein is the frame of a washing machine ofthe cylinder type. The frame in eludes a tub 11 which is mounted at itscormg machine and the operating mechanism 1 ners upon front and rearpairs of upright legs, only shown in th1s instance. Said front pair oflegs are connected at their top and bottom ends in the usual manner 'soas to brace the frame as a whole.

The tub 11 has a rounded bottom wall which merges into the upright sidewalls and includes upright, flat front and rear end walls. The front endwall'13 is spaced inwardly from theplane/of the front legs 12 to providea compartment or space between said front wall and legs, in which myimproved gearing is located.

14 indicates the clothes receiving cylinder which is mounted in the endwalls of the tub in any convenient manner so as to be capable ofanoscillatory movement of a predetermined amplitude. Said cylinder isdetachably connected to a horizontally disposed, longitudinallyextending operating shaft 15, journalled in the front and rear uprightarms 16 and 17 of a bearing stand ard orbracket 18 located in thecompartment between the front wall 13 of the tub and the front legs 12.The axis of the operating shaft is of course coincident with the axis ofthe cylinder 14. Preferably this bracket rests upon and is secured to atransversely extending support in the form of a wide channel bar 19 thatis secured to the main frame in any suitable manner.

Fixed to the operating shaft 15 between the armsof the standard is anoperating arm 20 which is connected by a short link 21 with a shaft 21carried at the top end of a radius arm 22. This radius arm is fixed tothe front end of a shaft 23 journalled in the bracket arms 16 and 17below that of the operating shaft. The radius arm 22 is located in aplane in front of the arm 16 of the standard 18. Rotative with butslidable on the operating shaft 15, between the hub of the operating armand the rear arm of the standard 18 is a clutch collar 24 (see Figure 3)which may be moved into and out of engagement with clutch teeth 25 onthe hub of the operating arm 20. A. transversely disposed rod 26 isprovided for shifting the clutch, the rod having a handle 27 without theplane of the left hand leg 12 for actuating the same.

It is apparent from the foregoing description that when the clutch 24 isengaged with the legs 12 of the front pair being the; teeth 25' on theoperating arm 20 and an oscillatory movement is imparted to the radiusarm 22, a like movement is imparted to the operating shaft through thelink 21 and operating arm 20. It is manifest from an lnspectlon ofFigures 1 and 2 that on account of the fact that the operating arm 20.

By reason of'such arrangementof parts the.

operating arm 20 is oscillated at a slow, uniform rate at bothlimits ofthe movement and with a uniform acceleration in both directions betweensaid limits. A

. The mechanism for imparting an oscillatlng movement to the radius arm22 is as follows. Mounted on the supporting member or bar 19 at one side(the left as shown herein) of the plane of the operating shaft 1s arectangular box or casing 30. Said box,- whichis open at the front, hasspaced feet 31 on its bottom wall and a lug 32 on its left hand sidewall, to receive the screws which attach said box to the channel bar 19and to the adjacentleg 12. The open front end of the box or casing isclosed by a removable front plate 33, and journalled in suitable bearingopenings in said frontplate and the-rear wall of the casing is aplurality of longitudinally extending driven and drive shafts 34, 35 and36 respectively.

- The shafts 34, 35 which are the driven shafts, arelocated in'the samehorizontal plane, near the top of the casing while the shaft 36, whichis the drive shaft, is ar ranged below the plane of saidshafts 34, 35and closer to the right hand end wall of said casing. Fixed to the shaft34 just without the rear wall of the oasing,-is a crank arm 37 which isconnected by a link 38 to the pin or shaft 21? carried at the top'orfree end of the radius arm., Fixed to the shaft 34 just within the rearwall of the casing is a substantially large spur gear 39 which mesheswith a spur pinion '40 on the: shaft 35 near said rear wall. Upon theshaft 35 approximately midway between the front and rear walls of thecasing is a spur gear 41 of substantially, the same. size as .the gear39. The gear 41 meshes with a pinion 42 on the drive shaft 36, thepinion .42 bingabout the same size as the pinion 40. Just without thefront wall or cover 33 of the casing andfixed to the projecting end ofthe drive shaft 36, is a grooved pulley wheel 43. This pulley wheel isdriven by a belt 44 from a Smaller pulley 45 on the armature shaft of anelectric motor 46, mounted on the supporting member or bar 19 near theright hand 1e 12.

It is apparent 'that'w en the motor is driving the pulley 43, the crankarm 37.

which drives the radius arm 22i's rotated.

'ing, a motor on at a relatively slow speed through the reducing gears42, 41, 40 and 39 respectively.

Journalled in the top wall of the casing in the vertical plane'of theshaft 34 is an upright shaft .47.. Tothe bottom end of this" of thecasing. The top end of the upright shaft 47 extends into a suitable gearbox 50 located in a plane above the top-of'the. washing machine and tosaid gear box is secured a clothes wringer 51 which may be swung in ahorizontal plane about the shaft 47 as an axis into the desired positionand then looked therein in any suitable manner. The gear box 50. has acover 52 and contains the reverse gears for the rolls of the wringerwhich are controlled by a shifter handle 53..

' The advantages. of the mechanism abore described is apparent. of partsmay be fully assembled before they are installed in place upon themachine, the location ofsaid units properly distributing the Weightthereof to provide an even balance. The gear casing 30 is adapted to bepacked with and hold a suitable lubricant, so are eliminated. The partsare simple in construction and that noise and vibration pose,-so thatheavy castings areeliminated and the weight of the finished .machine ismaterially reduced.

While in describing my invention 1 have referred to certain details ofmechanical construction and arrangements of parts, I do hot wish to belimited thereto except as may be pointed out in the appended claims.

I'claim as my invention j 1. In a gearing for washing machines, incombination with a body including an upright pair of legs and a wallspaced back from the plane of the outer face of said legs, a bar fixedadjacent said wall and extending transversely between said legs, an

upright bracket fixed to the lniddleof said means foroperatin said rockarm includsai bar at one side of said bracket, a .crank arm at the otherside of said bracket, and a speed reduction unit for connecting saidcrank arm and motor comprising a box attached to said bar adjacent saidcrank arm and open in front, a removable closure for said open front,said closure and the opposed back wall of said box having associatedbearing recesses, parallel drive, driven, and intermediate shaftsjourn'alled in said bearing recesses, reduction gearing connecting said'shafts, the driven shaft projecting as a stud through the said back walland there having fixed to it said crank arm, and the drive shaftprojecting as a stud throughsaid front wall,

The several units efficient in operation for their intended purandapulle fixed to the projecting end of tion gearing connecting said drives aft and being operatively con- "nected to said motor.

2. In a gearing for washin 'machines, in combination with fixed to saidbody, an upright bracket fixed intermediate the ends of said bar, a rockarmcarried by said bracket, a motor for operating said rock arm,supported on said bar at one side of said bracket, a crank arm at theother side-of said bracket, and a speed reduction unit for connectingsaid crank arm and motor comprising, a box attached to said bar adjacentsaid crank arm, said box being open in front, a removable closure platefor said open front, said closure plate and the opposed back wall ofsaid box having aligned bearing recesses, parallel drive, driven, andinteremediate shafts journalled in said bearing recesses,reducsaidshafts, the driven shaft projecting as a stud through the backwall "and there having fixed to it said crank arm, and the drive shaftprojecting as a stud through said front wall, and a pulley fixed tothe-projecting end of said drive shaft and being operatively connectedto said motor.

3. In a gearing for washing machines, in combination with a body, "ahorizontal bar fixed to said body, an upright bracket fixed intermediatethe ends of said bar, a rock arm carried by saidv bracket, a motor foropcrating said rock arm, supported on said bar at one side of saidbracket, a crank arm at the other side ofsaid reduction unit forconnecting said crank arm and motor comprising, a boxattached to saidbar adjacent said crank am, said boxbeing open in front, a removableclosure plate for, said openfront, said closure plate and the opposedback Wall of said I box having aligned bearing recesses, 'paralleldrive, driven, and intermediate shafts journalled in said bearingrecesses, reduc tion gearing connecting said shafts, the driven shaftprojecting as a, stud through the back wall and there having fixed to itsaid crank arm, and the drive shaft projecting as a stud through saidfront Wall, a

a body, a horizontal bar bracket and-tmspeed pulley fixed to theprojecting end of said drive shaft and being operatively connected tosaid motor, the .top wall of said box being provided with a bearing inthe plane of the driven shaft and an auxiliary shaft havin bearingtherein and 'operatively connecte to the driven shaft within the box.

4. In a gearing for washing machines, in I combination with abody, aspeed reduction unit adapted to be attached to said bod comprising, acasing open atits front en, and-including a rear wall and top, bottomand end, walls, a front plate for closing the open end of the casing,longitudinal, parallel drive and driven shafts journalled in the rearwall and in vthe front end plate of the casing, a crank arm fixed to thedriven shaft without the rear wall of the casing, a

pulley fixed to that end of the drive shaft without the'front plate ofthe casing, and

in the casing. r

speed reducing gearing on said shafts with- 5. In a gearing for washingmachines, in

combination with a body, a speed reduction unit adapted tO'lJG attachedto said body comprising, a casing open at its front end and including arearwall and to bottom and end walls, a front plate for c osing the openend of the casing, a drive shaft, a driven shaft and an intermediateshaft, all journalled in said rear wall and said front plate in parallelarrangement, speed reducing gears on said shafts within the easing, acrank arm on the. driven shaft without the rear wall of the casing, amember on the drive shaft without the front wall of the casing, anupright shaft journalled in the of the driven shaft, and intermeshingbevel gears on said upright shaft and driven shaft;

In testimony that I claim the foregoing as my invention, I atlix mysignature 1n the presence of'two witnesses, this 14th day of October, A.D. 1921;

I Witnesses CLARENCE E. MEnLHoPE,

' T. H. Amos. 7

THoMAsH-MARs; g

